drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:139:6: warning: no previous prototype for 'optc1_set_vupdate_keepout'

From: kernel test robot
Date: Sun Nov 21 2021 - 03:44:13 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 923dcc5eb0c111eccd51cc7ce1658537e3c38b25
commit: 9df857f930d6035996d481b4e5bc9ce082990afb drm/amd/display: Move vupdate keepout programming from DCN20 to DCN10
date: 8 months ago
config: x86_64-randconfig-m001-20211109 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9df857f930d6035996d481b4e5bc9ce082990afb
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 9df857f930d6035996d481b4e5bc9ce082990afb
# save the attached .config to linux build tree
make W=1 ARCH=x86_64

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:139:6: warning: no previous prototype for 'optc1_set_vupdate_keepout' [-Wmissing-prototypes]
139 | void optc1_set_vupdate_keepout(struct timing_generator *optc,
| ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:879:6: warning: no previous prototype for 'optc1_setup_manual_trigger' [-Wmissing-prototypes]
879 | void optc1_setup_manual_trigger(struct timing_generator *optc)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:897:6: warning: no previous prototype for 'optc1_program_manual_trigger' [-Wmissing-prototypes]
897 | void optc1_program_manual_trigger(struct timing_generator *optc)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/optc1_set_vupdate_keepout +139 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c

133
134 /**
135 * Vupdate keepout can be set to a window to block the update lock for that pipe from changing.
136 * Start offset begins with vstartup and goes for x number of clocks,
137 * end offset starts from end of vupdate to x number of clocks.
138 */
> 139 void optc1_set_vupdate_keepout(struct timing_generator *optc,
140 struct vupdate_keepout_params *params)
141 {
142 struct optc *optc1 = DCN10TG_FROM_TG(optc);
143
144 REG_SET_3(OTG_VUPDATE_KEEPOUT, 0,
145 MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_START_OFFSET, params->start_offset,
146 MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_END_OFFSET, params->end_offset,
147 OTG_MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_EN, params->enable);
148 }
149

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip